.custom-header-btn {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    text-transform: uppercase;
    text-decoration: none;
    font-weight: 600;
    margin-left: 20px;
}

.custom-header-btn:hover {
    background-color: #0047ab;
    color: #fff;
}